Motive Performance Plus 4.56 Gears (99-04 GT)

Motive Performance Plus 4.56 Gears (99-04 GT)
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About Motive Gears

Motive Gears
Celebrating Their 65th year of serving the Automotive Aftermarket, no one is more committed to providing the highest quality part available today than Motive Gears. ...... READ MORE
OUR PRICE$189.99
Market Price $199.99You Save 5% ($10.00)
Item # 21108G99
Ships the same business day

Accessories Options

Add Gear Install Kit

Accessories Options

Add Traction-LOK Rebuild Kit w/ Carbon Discs
PRICE WITH OPTIONS $189.99

Product Features

  • Superior quality
  • CNC-cut from 8620 gear steel
  • 4.56 Gear Ratio
  • 8.8" Ring Gear Diameter
  • For street or track use
  • Fits 1999-2004 GT, Bullitt, Mach 1 and Cobra Mustangs
Improve Overall Performance. Improve your V8-powered Mustang's off-the-line responsiveness with a set of 4.56 gears from Motive. These high quality 4.56 gears from Motive will give your Mustang more pull off the line and get you into your power band faster for quicker quarters and lower ET's.

Superior Construction & Precision Fit. These Motive ring and pinon gears are CNC cut from high grade 8620 gear steel, and factory lapped for precision fit. Each set is hardness tested prior to leaving the factory to ensure the highest quality. Unlike other brands, Motive Gears do not have a reputation for "gear whine".

Recommended Upgrade. Changing the rear axle gear ratio will throw off the calibration of your Mustangs speedometer, but a Ford Racing Speedometer Recalibration Tool is an inexpensive way to fix this issue.

Application. This Motive Performance Plus 4.56 Ring and Pinion Gear set will fit all 1999 to 2004 V8 Mustangs including the GT, Bullitt, Mach 1 and Cobra models. A master bearing kit is recommended by most installers, especially on high mileage vehicles, see drop down option above.

Approximate RPM for 1999-2004 GT Manual
Gear Speed
25 MPH 35 MPH 45 MPH 55 MPH 65 MPH 75 MPH
1 4753 6654        
2 2812 3937 5062 6187    
3 1856 2599 3341 4084 4826 5569
4 1406 1969 2531 3094 3656 4219
5 956 1339 1721 2104 2486 2869


Approximate RPM for 1999-2004 GT Automatic
Gear Speed
25 MPH 35 MPH 45 MPH 55 MPH 65 MPH 75 MPH
1 3994 5591        
2 2180 3051 3923 4795 5667 6539
3 1406 1969 2531 3094 3656 4219
4 984 1378 1772 2166 2559 2953

Technical Note. Installation costs will vary, but a good rule of thumb is between $250 and $300. Be sure to work with a reliable shop that you trust for installations. You can also save money on your installation labor by having your Trac-Lok rebuilt at the same time as your gears are installed, see drop down option above.

Installation Time:

(approx) 4 Hours

Difficulty Level:

Mechanical expertise or professional installation required.

Customer Submitted Installation Guides:

Differential Gears - Installation Instructions
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Fitment:
  • GT 99, 00, 01, 02, 03, 04
  • Cobra 99, 00, 01, 02, 03, 04
  • Mach 1 03, 04
  • Bullitt 01

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